Auxiliary air-intake for engines.



D. G. ENO & G. E. PEASE. AUXILIARY AlR INTAKE FOR ENGINES.

APPHCATION FILED NOV. l 1911' Patented Sept. 3, 1918.

w O M w W Z7 1,? I D 1 DELWIN GonDonfENo Ann enoaen ELMER rnAsE', or LINooLn, NEBRASKA;

AUXILIARY AIR-INTAKE FOR ENGINES.

Letasco.

To all whom it may concern:

Be it known that we, DELWIN GORDON ENG and GEORGE ELMER PEASE, citizens of the United States, residing at Lincoln, in the county of Lancaster and State of Nebraska, have invented certain new and useful Improvements in Auxiliary Air-Intakes for Engines; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Our invention has for its object to provide an extremely simple and inexpensive, yet a highly efficient and durable device for admitting an auxiliary quantity of air into the intake manifold of internal combustion engines, provision being made whereby the amount of air is controlled by a self-seated check valve, and whereby the entire device may be thrown out of use when starting in cold weather.

WVith the foregoing general object in view, the invention resides in the novel construction of the device hereinafter fully described and claimed and shown in the accompanying drawings in which:

Figure 1 is a side elevation of the invention applied to an intake manifold;

Fig. 2 is a vertical section on the plane of the line 2-2 of Fig. 1

Fig. 3 is a horizontal section on the plane indicated on the line 3-3 of Fig. 2; and

Fig. 4: is a vertical section on the plane designated by line 4-4 of Fig. 2.

In the drawings above briefly described, the numeral 1 designates a right angular stem having a horizontal arm 2 and a vertical arm 3 depending from one end thereof, the other or outer end of said horizontal arm being externally threaded at 4: to be tapped into the intake manifold 5 of an internal combustion engine. The intermediate portion of the arm 2 is formed with an enla'rgement 6 through which a transverse bore 7 extends, said bore intersecting a bore 8 which extends through both of the arms 2 and 3. A rotary valve plug 9 is received in the transverse bore 7 and is provided with an angularly disposed stem to which an operating rod 10 is suitably connected, said rod being adapted to extend through the dash of the machine so that the plug 9 may be turned to either permit or obstruct the passage of air through the bore 8. After the engine has been started, the plug 9 is Specification of Letters Patent.

Patented Sept. a, rare.

Application filed November 1, 1917. Serial No. 199,702.

fully opened, but when starting in cold weather, it is necessary to close this plug in order that the mixture taken into the engine shall be rich enough to ignite.

At 11, the lower end of the arm 3' is threaded into a vertically disposed cylindrical valve casing 12 whose bottom is pro vided with a central air inlet opening 13, this opening being normally closed by a ball valve 14. This valve is drawn from its seat by the suction throughthe passage 8, when the engine is running, and as the weight of the ball will determine the amount which it rises, such weight will also control the amount of air entering. In order to prevent possible closing of the bore 8 when the valve 14 rises from its seat, the lower end of the arm 3 is provided with a plurality of grooves 15 which extend transversely thereof and open into said bore.

Preferably though not necessarily used in connection with the parts above described, is a tubular screen 16 which is secured in the free end of the arm 2, said screen passing across the manifold 5 for spraying the incoming air into the explosive mixture passing through the manifold, thus insuring thorough mixing. The fuel, thus rarefied by the auxiliary air, produces excellent results in the engine, saves gasolene, and keeps down carbon deposits.

The device is easily installed in practically any manifold by drilling a suitable opening in the latter and tapping said opening, it being then only necessary to thread the end 4 of the stem 1 into said opening and to pass the operating rod 10 through another open ing formed through the dash. As above set forth, the valve plug 9 is used principally for cutting off the supply of auxiliary air when starting, but if necessary, it will be obvious that the passage of air through the bore 8 may be accurately controlled by proper adjustment of said plug. In most cases, however, the plug remains entirel open while the engine is running. 7

From the foregoing, taken in connection with the accompanying drawings, it will be obvious that although our invention is of extremely simple and inexpensive nature, it will be highly efficient and durable, particular emphasis being laid upon the fact that the arm 3 depends from the arm 2, whereby the ball valve 14 is self-seating. We are aware that numerous auxiliary air supplying devices have been placed upon the market, and we are not claiming any broad novelty. hat we do claim, however, is the specific construction of our device as set forth in the following.

We claim:

The herein-described air supply device for automobile engines comprising a one-piece right angular stem having vertical; and horizontal arms provided with longitudinal comnninicating bores, the outer end of said horizontal arm being threaded for tapping into the intake manifold of the engine, the intermediate portion of said horizontal arm having an integral enlargement through which a transverse inclined bore is formed intersecting the aforesaid longitudinal bore of said horizontal arm, a rotary valve plug in said transverse bore having a straight operating rod of a length to extend through the dash board of the automobile, said rod bein alined with said In a vertical oneplece cylindrical valve casing, hav ng lts upper end threaded on the lowerend of said vertical arm and. having an air inlet 0pening in its bottom, and a ball valve in said casing, to normally close said opening, the lower end of said vertical arm being provided with transverse grooves opening into the lower end of the longitudinal bore of said arm, whereby to permit the entrance of air when said ball valve rises and abuts the lower end of said vertical arm.

In testimony whereof we have hereunto set our hands in the presence of two subscribing witnesses. L

DELL GORDON ENO.

GEORGE ELMER PEASE. lVitnesses:

T. A. GEBHART, J. D. DORN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

